Feeling more sick than pregnant.

Holly
I'm 13weeks exactly and my symptoms are still coming on strong. The problem is I haven't heard my baby's heart beat or had an ultrasound since 7weeks , and I'm starting to feel worried. I know everything is most likely fine. Iv had no complications or anything. However being my first pregnancy I'm  getting antsy. I don't really feel pregnant just sick. I hate being so nervous . Please tell me I'm not the only one who feels this way.  Maybe I'm just a worry wort......